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3 apple PowerBook G4 (DVI) Check for PowerBook G4 (DVI) 867 MHz Upgrade Check for Upgraded Computer Before you begin service procedures, check whether the computer has been upgraded with a PowerBook G4 (DVI) 867 MHz Upgrade Kit. Look at the computer s ID label in the battery well to see if there is an Ethernet bar code label over the original Ethernet bar code, and a black dot in the upper right corner of the ID label. In addition, the customer may also have a Proof of Repair and Upgrade sheet. If so, the computer has been upgraded with a PowerBook G4 (DVI) 867 MHz Upgrade Kit. The upgraded computer uses the following PowerBook G4 (1GHz/867MHz) parts: 867MHz logic board ( ) DC-in board ( ) Heat exchanger ( ) Primary fan ( ) Secondary fan ( ) Use only these parts, and refer to the PowerBook G4 (1GHz/867MHz) service manual (Updated 8 August 2003, or later) when performing service involving these parts. Note: This computer upgrade is NOT available to service providers Apple Computer, Inc. All rights reserved. Updated: 14 October 2003

4 apple PowerBook G4 (DVI) Heat Exchanger Upgrade Installation Instructions The following instructions explain how to install the appropriate parts of the Heat Exchanger Upgrade Kit ( ) in the PowerBook G4 (DVI) computer. Important: Use this chapter in conjunction with the take apart chapters. Only the exceptions are shown in this chapter. Perform these exception procedures at the appropriate points, and ignore the take apart procedures that do not apply. Important: This kit is NOT for PowerBook G4 (DVI) 867 MHz upgraded computers. Refer to the Check for PowerBook G4 (DVI) 867 MHz Upgrade chapter of this manual to check for this computer upgrade. Important: Some parts and procedures are different depending upon the configuration (667 MHz and 800 MHz). Verify the configuration and follow the procedures below: Note: The kit consists of parts for both the 667 MHz and 800 MHz configurations. Verify that the kit contains the following: New version heat exchanger with ribbed extension Heat exchanger hold down bracket New version secondary fan (for 800 MHz units, only) (1) thick and (1) thin washer (for 667 MHz units, only) Note: Kapton tape is needed for the 667 MHz configuration and is not included in the kit Apple Computer, Inc. All rights reserved. Updated: 4 December 2003

5 Procedure For both configurations: 1. Remove the old heat exchanger and the secondary fan bracket (with fan, if present). 2. Install the new heat exchanger from the kit. 3. Install the heat exchanger hold-down bracket, as shown here. Use the screw that was removed from the rib frame at this location. Replacement Note: Look from the side through the air vents of the top case to verify that the ribs on the heat exchanger do not block the vents. Important: Before installing the logic board, verify that all thermal materials are installed on the new heat exchanger, and that all residual thermal material is removed from the logic board CPU chip, if any. Important: If the heat exchanger has thermal material installed for the CPU chip, do not install thermal material onto the logic board chip. PowerBook G4 (DVI) Heat Exchanger Upgrade - 2

6 For the 667 MHz configuration This configuration does not use a secondary fan or bracket. A thin and thick washer will be installed. 1. With the screw removed from the DC-in board, center the thin washer over the screw hole in the board, then replace the screw, as shown. Replacement Note: Make sure the DC connector is straight and centered in the port opening. The unplugged adapter connector may be inserted onto the DC connector to ensure that the connector is centered and straight before securing the DC-in board. 2. Center the thick washer over the screw hole shown below (this is a bottom case screw hole) and place Kapton tape over the top to secure it in place. Important: Verify that the washer does not obstruct the screw hole. PowerBook G4 (DVI) Heat Exchanger Upgrade - 3

7 For the 800 MHz configuration This configuration uses the new secondary fan included in the kit. 1. Reroute the speaker wire and connector, as shown. 2. Install the secondary fan, as shown. Replacement Note: Make sure the DC connector is straight and centered in the port opening. The unplugged adapter connector may be inserted onto the DC connector to ensure that the connector is centered and straight before securing the fan to the DC-in board. PowerBook G4 (DVI) Heat Exchanger Upgrade - 4

9 apple PowerBook G4 (DVI) Keyboard Replacement Instructions Follow the instructions in this sheet carefully. Failure to follow these instructions could damage your equipment and void its warranty. Note: Written and video instructions covering customer-installable parts are available at Warning: During this procedure, keep small parts away from children. Tools Required The only tool required for this procedure is a jeweler s flat-blade screwdriver (if keyboard is locked). Removing the Installed Keyboard Warning: Always shut down your computer before opening it to avoid damaging its internal components or causing injury. After you shut down the computer, the internal components can be very hot. Let the computer cool down before continuing. 1. Place your computer on a clean, flat surface. 2. Shut down your computer and wait thirty minutes before continuing. 3. Disconnect the power cord and any other cables connected to the computer.

10 4. Close the computer and turn it over. 5. Slide the battery latch (Figure 1A) to the right to remove the battery (Figure 1B). Removing the battery will prevent you from accidentally turning on the computer. Warning: Removing the battery before shutting down your computer may result in data loss. Figure 1 B A 6. Turn over the computer. 7. Raise the display so you can access the keyboard. 8. Make sure the keyboard locking screw, located in the small plastic tab to the left of the Num Lock key (Figure 2), is not in the locked position. Your PowerBook comes with the keyboard unlocked, so unless you or someone else locked the keyboard, you can skip this step. To unlock the keyboard, turn the screw 1/2 turn. Figure 2 PowerBook G4 (DVI) Keyboard - 2

11 9. Release the keyboard by pulling down on the keyboard release tabs (located to the left of the F1 and F12 keys) (Figure 3), then lift the top portion of the keyboard up slightly, and toward the display. Figure Flip the keyboard over and lay it on the palm rests and trackpad. (Figure 4) Figure 4 PowerBook G4 (DVI) Keyboard - 3

12 11. Touch the computer s inside framework (a dull gray conductive composite material) to discharge any static electricity, as shown (Figure 5). Important: To avoid electrostatic discharge damage, always ground yourself by touching the computer s framework before you touch any parts or install any components inside the computer. To avoid static electricity building back up in your body, do not walk around the room until you have completed your installation and closed the computer. Figure Locate the keyboard cable connector. (Figure 6) Figure Pull up on the connector, from side to side if needed, to disconnect it from the computer. 14. Set the keyboard aside. PowerBook G4 (DVI) Keyboard - 4

13 Installing the Replacement Keyboard 1. Lay the replacement keyboard in the correct orientation over the keyboard opening, then flip it toward you and lay it face down on the palm rests and trackpad to expose its connector cable. (Figure 7) Figure 7 2. Firmly insert the keyboard cable connector into its connector on the computer. 3. Flip the keyboard back toward the keyboard opening in the case. 4. Hold the keyboard at an angle above the keyboard opening, and insert the tabs on the bottom edge of the keyboard into the slots below the edge of the opening. (Figure 8) Important: Make sure that all the tabs are seated and that the keyboard rests flush against the edge of the opening. Figure 8 PowerBook G4 (DVI) Keyboard - 5

14 5. Lay the keyboard flat into the keyboard opening. 6. Pull down on the keyboard release tabs and then press down on the top portion of the keyboard. (Figure 9) Figure 9 7. Release the tabs to secure the keyboard in place. 8. Close the display and turn the PowerBook over. 9. Replace the battery into the battery compartment. (Figure 10) Important: Make sure that the battery locks securely into place and that the battery latch is slid all the way into the locked position. Figure Reconnect the power cord and any other cables that were connected, and restart your computer. Warning: Never turn on your computer unless all of its internal and external parts are in place and it is closed. Operating the computer when it is open or missing parts can damage your computer or cause injury. PowerBook G4 (DVI) Keyboard - 6

15 apple Apple Computer, Inc Apple Computer, Inc. All rights reserved. This document is protected under U.S. Copyright Law and International Treaties, and no part of this document may be reproduced in any form without written permission from Apple. Apple is not responsible for typographical, printing, or inadvertent errors. Apple Computer, Inc. 1 Infinite Loop Cupertino, CA USA Apple, the Apple logo, and PowerBook are trademarks of Apple Computer, Inc., registered in the U.S. and other countries. PowerBook G4 (DVI) Keyboard - 7

16 apple PowerBook G4 (DVI) Memory Card Replacement Instructions Follow the instructions in this sheet carefully. Failure to follow these instructions could damage your equipment and void its warranty. Note: Written and video instructions covering customer-installable parts are available at Warning: During this procedure, keep small parts away from children. Tools Required The only tool required for this procedure is a jeweler s flat-blade screwdriver (if keyboard is locked). Opening the Computer Warning: Always shut down your computer before opening it to avoid damaging its internal components or causing injury. After you shut down the computer, the internal components can be very hot. Let the computer cool down before continuing. 1. Place your computer on a clean, flat surface. 2. Shut down your computer and wait thirty minutes before continuing. 3. Disconnect the power cord and any other cables connected to the computer.

17 4. Close the computer and turn it over. 5. Slide the battery latch (Figure 1A) to the right to remove the battery (Figure 1B). Removing the battery will prevent you from accidentally turning on the computer. Warning: Removing the battery before shutting down your computer may result in data loss. Figure 1 B A 6. Turn over the computer. 7. Raise the display so you can access the keyboard. 8. Make sure the keyboard locking screw, located in the small plastic tab to the left of the Num Lock key (Figure 2), is not in the locked position. Your PowerBook comes with the keyboard unlocked, so unless you or someone else locked the keyboard, you can skip this step. To unlock the keyboard, turn the screw 1/2 turn. Figure 2 PowerBook G4 (DVI) Memory - 2

18 9. Release the keyboard by pulling down on the keyboard release tabs (located to the left of the F1 and F12 keys) (Figure 3), then lift the top portion of the keyboard up slightly, and toward the display. Figure Flip the keyboard over and lay it on the palm rests and trackpad. (Figure 4) Figure 4 PowerBook G4 (DVI) Memory - 3

19 11. Touch the computer s inside framework (a dull gray conductive composite material) to discharge any static electricity, as shown (Figure 5). Important: To avoid electrostatic discharge damage, always ground yourself by touching the computer s framework before you touch any parts or install any components inside the computer. To avoid static electricity building back up in your body, do not walk around the room until you have completed your installation and closed the computer. Figure 5 Removing the Installed Memory Card 1. To remove a memory card, locate the brackets that secure the card on both sides (Figure 6). Carefully spread the brackets apart until the card releases on each side. Pull the card up and out. Note: If there is a memory card in the upper memory slot (Figure 6A), it must be removed before removing a card in the lower slot (Figure 6B). Figure 6 B A PowerBook G4 (DVI) Memory - 4

20 Installing the Replacement Memory Card Warning: When handling a memory card, do not touch its gold connectors. Handle the card only by the edges. 1. To install the memory card, line up the notch in the card with the small tab in the memory slot. Hold the card at a 30-degree angle (Figure 7A), and then push the card into the slot until it is firmly seated. Note: You may feel some resistance. If you are having trouble inserting the card, try pushing one side at a time. Figure 7 A 2. Gently push the card down until the two brackets on either side of the card lock into place (Figure 8). Figure 8 PowerBook G4 (DVI) Memory - 5

21 Closing the Computer 1. Flip the keyboard back toward the keyboard opening in the case. 2. Hold the keyboard at an angle above the keyboard opening, and insert the tabs on the bottom edge of the keyboard into the slots below the edge of the opening. (Figure 9) Important: Make sure that all the tabs are seated and that the keyboard rests flush against the edge of the opening. Figure 9 3. Lay the keyboard flat into the keyboard opening. 4. Pull down on the keyboard release tabs and then press down on the top portion of the keyboard. (Figure 10) Figure Release the tabs to secure the keyboard in place. PowerBook G4 (DVI) Memory - 6

22 6. Close the display and turn the PowerBook over. 7. Replace the battery into the battery compartment. (Figure 11) Important: Make sure that the battery locks securely into place and that the battery latch is slid all the way into the locked position. Figure Reconnect the power cord and any other cables that were connected, and restart your computer. Warning: Never turn on your computer unless all of its internal and external parts are in place and it is closed. Operating the computer when it is open or missing parts can damage your computer or cause injury. apple Apple Computer, Inc Apple Computer, Inc. All rights reserved. This document is protected under U.S. Copyright Law and International Treaties, and no part of this document may be reproduced in any form without written permission from Apple. Apple is not responsible for typographical, printing, or inadvertent errors. Apple Computer, Inc. 1 Infinite Loop Cupertino, CA USA Apple, the Apple logo, and PowerBook are trademarks of Apple Computer, Inc., registered in the U.S. and other countries. PowerBook G4 (DVI) Memory - 7

23 apple PowerBook G4 (DVI) Bottom Case Replacement Instructions Follow the instructions in this sheet carefully. Failure to follow these instructions could damage your equipment and void its warranty. Note: Written and video instructions covering customer-installable parts are available at Warning: Sharp edges can exist inside your computer and on any parts being removed or installed. Use caution to avoid injury. Keep small parts away from children. Tools Required Soft towel or cloth, larger than the PowerBook Torx T8 screwdriver (provided with bottom case) Removing the Bottom Case Warning: Always shut down your computer before opening it to avoid damaging its internal components or causing injury. After you shut down the computer, the internal components can be very hot. Let the computer cool down before continuing. 1. Place your computer on a clean, flat surface. 2. Shut down your computer and wait thirty minutes before continuing. 3. Disconnect the power cord and any other cables connected to the computer.

24 4. Place a towel or soft cloth on a table in front of you. (Figure 1A) The towel or cloth will protect the keyboard and display area of the PowerBook when you flip it over to remove the battery and bottom case. Make sure it covers an area large enough for your PowerBook and that it hangs over the edge of the table. 5. With the display open at an angle greater than 90 degrees, carefully flip the PowerBook over and lay it flat, fully on the table. Make sure the display hangs over the edge of the table and rests lightly on your lap. (Figure 1B) Important: Do not open the display farther than the angle shown. Figure 1 A B 6. Remove the battery by sliding the battery latch to the left. Make sure to return the latch fully to the right. (Figure 2) Removing the battery will prevent you from accidentally turning on the computer. Warning: Removing the battery before shutting down your computer may result in data loss. Figure 2 PowerBook G4 (DVI) Bottom Case - 2

25 7. Using the appropriate screwdriver, remove the eight bottom case screws in the order shown in the illustration. (Figure 3) Important: To avoid damaging the case, be careful that the screwdriver tip does not slip out of the screw head during removal. Figure Note: The following three steps explain how to remove the bottom case by disengaging it at the left and right sides and then carefully pivoting it forward. Important: During this procedure, do not push on the rubber feet of the bottom case. 8. Carefully slide the bottom case away from you. (Figure 4) Figure 4 PowerBook G4 (DVI) Bottom Case - 3

26 9. Pivot the bottom case up as shown in the illustration below. (Figure 5) Figure 5 Installing the Replacement Bottom Case 1. To install the new bottom case, place it over the bottom of the computer in the same orientation as the original bottom case. 2. Align the notches on the right and left sides of the case (some of these can be viewed through the battery opening). Then press down and toward you slightly to secure the case. Important: Make sure that the seams between the bottom case and the frame are closed. Verify that the case lies flat and fits properly around the battery latch and that the alignment tab that protrudes on the underside of the bottom case, shown in the illustration (Figure 6A), is seated properly. Note: To help with alignment, apply pressure to the bottom case at the back of the battery compartment opening, near the latch, and on the front and back outside edges of the case. 3. Check that the eight screw holes on the case align with the holes on the computer. PowerBook G4 (DVI) Bottom Case - 4

27 4. Replace the eight screws in the order shown in the illustration (Figure 6). Do not overtighten the screws or damage could result. Note: The screws must go in straight and easily; if they do not, readjust the bottom case for proper alignment. Important: To avoid damaging the case, be careful that the screwdriver tip does not slip out of the screw head during tightening. Figure A Replace the battery. (Figure 7) Important: Make sure that the battery locks securely into place and that the battery latch is slid all the way into the locked position. Figure 7 PowerBook G4 (DVI) Bottom Case - 5

28 6. Turn the computer over so that the optical drive slot faces you. Verify that the bottom case is flush with the front edge of the slot. If the case is slightly bowed and there is a gap near the center of the slot, carefully pull the bottom edge of the slot until it clicks into place and becomes flush with the bottom case. (Figure 8) Figure 8 7. Reconnect the power cord and any other cables that were connected, and restart your computer. Warning: Never turn on your computer unless all of its internal and external parts are in place and it is closed. Operating the computer when it is open or missing parts can damage your computer or cause injury. PowerBook G4 (DVI) Bottom Case - 6

29 apple Apple Computer, Inc Apple Computer, Inc. All rights reserved. This document is protected under U.S. Copyright Law and International Treaties, and no part of this document may be reproduced in any form without written permission from Apple. Apple is not responsible for typographical, printing, or inadvertent errors. Apple Computer, Inc. 1 Infinite Loop Cupertino, CA USA Apple, the Apple logo, and PowerBook are trademarks of Apple Computer, Inc., registered in the U.S. and other countries. PowerBook G4 (DVI) Bottom Case - 7

30 apple PowerBook G4 (DVI) AirPort Card Replacement Instructions Follow the instructions in this sheet carefully. Failure to follow these instructions could damage your equipment and void its warranty. Note: Written and video instructions covering customer-installable parts are available at Warning: Sharp edges can exist inside your computer and on any parts being removed or installed. Use caution to avoid injury. Keep small parts away from children. Tools Required Soft towel or cloth, larger than the PowerBook Torx T8 screwdriver Opening the Computer Warning: Always shut down your computer before opening it to avoid damaging its internal components or causing injury. After you shut down the computer, the internal components can be very hot. Let the computer cool down before continuing. To access the AirPort Card, you must first remove the battery and bottom case. 1. Place your computer on a clean, flat surface. 2. Shut down your computer and wait thirty minutes before continuing. 3. Disconnect the power cord and any other cables connected to the computer.

31 4. Place a towel or soft cloth on a table in front of you. (Figure 1A) The towel or cloth will protect the keyboard and display area of the PowerBook when you flip it over to remove the battery and bottom case. Make sure it covers an area large enough for your PowerBook and that it hangs over the edge of the table. 5. With the display open at an angle greater than 90 degrees, carefully flip the PowerBook over and lay it flat, fully on the table. Make sure the display hangs over the edge of the table and rests lightly on your lap. (Figure 1B) Important: Do not open the display farther than the angle shown. Figure 1 A B 6. Remove the battery by sliding the battery latch to the left. Make sure to return the latch fully to the right. (Figure 2) Removing the battery will prevent you from accidentally turning on the computer. Warning: Removing the battery before shutting down your computer may result in data loss. Figure 2 PowerBook G4 (DVI) AirPort Card- 2

32 7. Using a Torx T8 screwdriver, remove the eight bottom case screws in the order shown in the illustration. (Figure 3) Important: To avoid damaging the case, be careful that the screwdriver tip does not slip out of the screw head during removal. Figure Note: The following three steps explain how to remove the bottom case by disengaging it at the left and right sides and then carefully pivoting it forward. Important: During this procedure, do not push on the rubber feet of the bottom case. 8. Carefully slide the bottom case away from you. (Figure 4) Figure 4 PowerBook G4 (DVI) AirPort Card- 3

33 9. Pivot the bottom case up as shown in the illustration below. (Figure 5) Figure Touch the computer s inside framework (a dull gray conductive composite material) to discharge any static electricity, as shown. (Figure 6) Important: To avoid electrostatic discharge damage, always ground yourself by touching the computer s framework before you touch any parts or install any components inside the computer. To avoid static electricity building back up in your body, do not walk around the room until you have completed your installation and closed the computer. Figure 6 PowerBook G4 (DVI) AirPort Card- 4

34 Removing the Installed AirPort Card 1. Pull back on the antenna clip (Figure 7A) to release the antenna cable connector (Figure 7B) and allow the card to rise up slightly. 2. Pull the card from the AirPort connector (Figure 7D). 3. Hold the AirPort Card with one hand and grasp the antenna cable connector with the other. While being careful not to strain the antenna cable (Figure 7C), firmly pull the connector straight out of the AirPort Card. Figure 7 D C A B Important: If the AirPort Card is not being replaced right away, replace the antenna cable connector into its holder (Figure 9B) and pull the loop of the antenna cable up slightly and away from the edge of the computer case. This prevents the cable from interfering with the PC card slot, below, or getting pinched during reassembly. Also, if the insertion end of the AirPort Card connector is rotated up, push it down into the level position. This allows the bottom case to install properly. PowerBook G4 (DVI) AirPort Card- 5

35 Installing the Replacement AirPort Card 1. If the AirPort Card to be installed came with the AirPort adapter (Figure 8A), remove the metal clip (Figure 8B) and pull the AirPort Card (Figure 8C) from the adapter. (The adapter and metal clip are not used with your PowerBook.) Figure 8 A C B 2. If necessary, pull the AirPort antenna cable connector (Figure 9A) from its holder (Figure 9B). Figure 9 B A PowerBook G4 (DVI) AirPort Card- 6

36 3. Pull up the insertion end of the AirPort Card connector (Figure 10A) to raise it up slightly, if it is not already up. 4. Position the AirPort Card (Figure 10B) with the AirPort ID numbers and bar code facing up and slide the card into the connector. Make sure to slide the card all the way in until the card is securely attached to the connector. Figure 10 B A PowerBook G4 (DVI) AirPort Card- 7

37 5. Plug the antenna cable connector (Figure 11A) into the port, which is located just below the plastic tab (Figure 11B), on the end of the AirPort Card. Make sure the connector is straight before inserting it into the card. 6. Push the AirPort Card down into its space until the antenna cable connector is secured by the small antenna clip (Figure 11C). Important: Route the antenna cable (Figure 11D) between the edge of the computer and the AirPort Card. Verify that the cable is away from the edge of the computer so that it will not be pinched during reassembly and that it does not sag down into the PC card slot area (below the AirPort Card). Take up any extra cable by tucking it in where shown (Figure 11E). 7. Fold the plastic tab (Figure 11B) on the AirPort Card over the top of the card. Note: The plastic tab must be folded over the card during the installation of the bottom case; otherwise you will not be able to securely attach the bottom case to the computer. Figure 11 E B D C A PowerBook G4 (DVI) AirPort Card- 8

38 Closing the Computer 1. To replace the bottom case, place it over the bottom of the computer in the same orientation as the original bottom case. 2. Align the notches on the right and left sides of the case (some of these can be viewed through the battery opening). Then press down and toward you slightly to secure the case. Important: Make sure that the seams between the bottom case and the frame are closed. Verify that the case lies flat and fits properly around the battery latch and that the alignment tab that protrudes on the underside of the bottom case, shown in the illustration (Figure 12A), is seated properly. Note: To help with alignment, apply pressure to the bottom case at the back of the battery compartment opening, near the latch, and on the front and back outside edges of the case. 3. Check that the eight screw holes on the case align with the holes on the computer. 4. Replace the eight screws in the order shown in the illustration (Figure 12). Do not overtighten the screws or damage could result. Note: The screws must go in straight and easily; if they do not, readjust the bottom case for proper alignment. Important: To avoid damaging the case, be careful that the screwdriver tip does not slip out of the screw head during tightening. Figure A PowerBook G4 (DVI) AirPort Card- 9

39 5. Replace the battery. (Figure 13) Important: Make sure that the battery locks securely into place and that the battery latch is slid all the way into the locked position. Figure Turn the computer over so that the optical drive slot faces you. Verify that the bottom case is flush with the front edge of the slot. If the case is slightly bowed and there is a gap near the center of the slot, carefully pull the bottom edge of the slot until it clicks into place and becomes flush with the bottom case. (Figure 14) Figure 14 PowerBook G4 (DVI) AirPort Card- 10

40 7. Reconnect the power cord and any other cables that were connected, and restart your computer. Warning: Never turn on your computer unless all of its internal and external parts are in place and it is closed. Operating the computer when it is open or missing parts can damage your computer or cause injury. apple Apple Computer, Inc Apple Computer, Inc. All rights reserved. This document is protected under U.S. Copyright Law and International Treaties, and no part of this document may be reproduced in any form without written permission from Apple. Apple is not responsible for typographical, printing, or inadvertent errors. Apple Computer, Inc. 1 Infinite Loop Cupertino, CA USA Apple, the Apple logo, and PowerBook are trademarks of Apple Computer, Inc., registered in the U.S. and other countries. PowerBook G4 (DVI) AirPort Card- 11

41 apple PowerBook G4 (DVI) Hard Drive Replacement Instructions Follow the instructions in this sheet carefully. Failure to follow these instructions could damage your equipment and void its warranty. Note: Written and video instructions covering customer-installable parts are available at Warning: Sharp edges can exist inside your computer and on any parts being removed or installed. Use caution to avoid injury. Keep small parts away from children. Tools Required Soft towel or cloth, larger than the PowerBook Torx T8 screwdriver (provided with hard drive) Backing Up Your Data Warning: Before replacing your hard drive, make sure you back up all data on the drive. Opening the Computer Warning: Always shut down your computer before opening it to avoid damaging its internal components or causing injury. After you shut down the computer, the internal components can be very hot. Let the computer cool down before continuing. To access the hard drive, you must first remove the battery and bottom case. 1. Place your computer on a clean, flat surface. 2. Shut down your computer and wait thirty minutes before continuing. 3. Disconnect the power cord and any other cables connected to the computer.

42 4. Place a towel or soft cloth on a table in front of you. (Figure 1A) The towel or cloth will protect the keyboard and display area of the PowerBook when you flip it over to remove the battery and bottom case. Make sure it covers an area large enough for your PowerBook and that it hangs over the edge of the table. 5. With the display open at an angle greater than 90 degrees, carefully flip the PowerBook over and lay it flat, fully on the table. Make sure the display hangs over the edge of the table and rests lightly on your lap. (Figure 1B) Important: Do not open the display farther than the angle shown. Figure 1 A B 6. Remove the battery by sliding the battery latch to the left. Make sure to return the latch fully to the right. (Figure 2) Removing the battery will prevent you from accidentally turning on the computer. Warning: Removing the battery before shutting down your computer may result in data loss. Figure 2 PowerBook G4 (DVI) Hard Drive - 2

43 7. Using a Torx T8 screwdriver, remove the eight bottom case screws in the order shown in the illustration. (Figure 3) Important: To avoid damaging the case, be careful that the screwdriver tip does not slip out of the screw head during removal. Figure Important: During this procedure, do not push on the rubber feet of the bottom case. 8. Carefully slide the bottom case away from you. (Figure 4) Figure 4 PowerBook G4 (DVI) Hard Drive - 3

44 9. Pivot the bottom case up as shown in the illustration below. (Figure 5) Figure Touch the computer s inside framework (a dull gray conductive composite material) to discharge any static electricity, as shown. (Figure 6) Important: To avoid electrostatic discharge damage, always ground yourself by touching the computer s framework before you touch any parts or install any components inside the computer. To avoid static electricity building back up in your body, do not walk around the room until you have completed your installation and closed the computer. Figure 6 PowerBook G4 (DVI) Hard Drive - 4

45 Removing the Installed Hard Drive 1. With your fingers, carefully pry up the hard drive cable connector (Figure 7A) at its sides to disconnect it from the logic board. You may need to pry one side, then the other, in a rocking motion. Figure 7 A 2. With a Torx T8 screwdriver, remove the two screws that secure the hard drive mounting bracket, and remove the bracket. (Figure 8) Figure 8 PowerBook G4 (DVI) Hard Drive - 5

46 3. Pull up on the right side of the hard drive to remove. (Figure 9) Important: Do not pull on the connector cable or use the cable as a handle. Figure 9 Note: There are four rubber stoppers on the hard drive that fit over screws (two on each side). Remove any that may have fallen off or that remain in the holes in the mounting bracket inside the computer. 4. Carefully remove the Mylar sheath and cable from the hard drive to transfer to the replacement drive. Important: The connector pins on the hard drive are fragile and bend easily. Use care to keep the pins straight when removing or installing. PowerBook G4 (DVI) Hard Drive - 6

47 Installing the Replacement Hard Drive Warning: To avoid potential injury, avoid touching or brushing against the thin strip of metal that extends up from the hard drive mounting bracket (Figure 10A). Important: Avoid touching the optical drive as you perform this procedure. 1. Make sure that the screws (Figure 10A) and rubber stoppers (Figure 10B) are in place on the sides of the replacement drive. 2. Install the Mylar sheath (Figure 10C) so that it covers the bottom and left and right sides of the drive. The sheath is directional install it so that it does not extend beyond the front of the hard drive. 3. Carefully install the hard drive cable (Figure 10D). The cable connector is keyed to fit only one way. Figure 10 B C D A 4. Insert the left side of the drive first, then the right. Use a screwdriver through the frame holes on the left side to help align the stoppers, if necessary. (Figure 11) Figure 11 PowerBook G4 (DVI) Hard Drive - 7

49 Closing the Computer 1. Attach the bottom case to the computer and replace the seven screws in the order shown in the illustration below (Figure 14). Line up the notches on the right and left sides of the case, then press down slightly to secure the case. Check the alignment of the seven screw holes to make sure the bottom case is properly positioned. Important: Make sure that the seams between the bottom case and the frame are closed. Check the outside edges and around the battery bay. Verify that the alignment tab on the underside of the bottom case, shown in the illustration below (Figure 14A), has seated, and the case lies flat. Note: The screws must go in straight and easily; if they do not, readjust the bottom case for proper alignment. Do not overtighten the screws or damage could result. Important: To avoid damaging the case, be careful that the screwdriver tip does not slip out of the screw head during tightening. Figure A PowerBook G4 (DVI) Hard Drive - 9

50 2. Replace the battery. (Figure 15) Important: Make sure that the battery locks securely into place and that the battery latch is slid all the way into the locked position. Figure Turn the computer over. Look at the optical drive slot to make sure that the case is properly secured. If a gap exists below the slot, gently pull the bottom of the optical drive slot toward you until it clicks into place and the gap is removed. (Figure 16) Figure 16 PowerBook G4 (DVI) Hard Drive - 10

51 4. Reconnect the power cord and any other cables that were connected, and restart your computer. Warning: Never turn on your computer unless all of its internal and external parts are in place and it is closed. Operating the computer when it is open or missing parts can damage your computer or cause injury. 5. Restore the data from your backup to the new drive. 6. Check the operation of the optical drive. If the hard drive is installed incorrectly, the optical drive mechanism might not spin correctly and will result in mechanical noise when playing a disc. apple Apple Computer, Inc Apple Computer, Inc. All rights reserved. This document is protected under U.S. Copyright Law and International Treaties, and no part of this document may be reproduced in any form without written permission from Apple. Apple is not responsible for typographical, printing, or inadvertent errors. Apple Computer, Inc. 1 Infinite Loop Cupertino, CA USA Apple, the Apple logo, and PowerBook are trademarks of Apple Computer, Inc., registered in the U.S. and other countries. PowerBook G4 (DVI) Hard Drive - 11

55 Procedure 1. Disconnect the DC-in board cable connector from the logic board. 2. Remove the two Torx T6 screws. 3. Guide the DC-in board out of the case. Replacement Note: If you performed a procedure that also removed the logic board, ensure that the power button cable routes as shown. PowerBook G4 (DVI) DC-In Board - 2

56 Replacement Notes: Install or transfer the 1 mm plastic spacer washer to the replacement DC-In board. When replacing the DC-in board, ensure that the secondary fan or bracket is seated properly over the pin on the rib frame, and with its securing-tab resting on top of the DC-In board. If one screw was longer, replace it through the fan s securing-tab. Make sure that the DC connector is straight and centered in the port opening. With the power adapter unplugged, the adapter connector may be inserted onto the DC connector to ensure that the connector is centered and straight before securing the DC-in board. PowerBook G4 (DVI) DC-In Board - 3

57 If a secondary fan is installed, bend the DC-In board cable wires around the edge of the fan, as shown, so they do not interfere with the fan or air flow. PowerBook G4 (DVI) DC-In Board - 4

59 Procedure Important: With the bottom case removed, be careful if turning over the computer. Some components could become loose and fall out. 1. Disconnect the inverter board flex cable from both the inverter board and logic board. 2. Disconnect the bulb wire cable from the inverter board. 3. Remove the two T6 screws that secure the inverter board and remove the board. Replacement Note: When reinstalling the replacement optical drive, ensure that the bulb wire cable is safely within the case edge so that it will not get pinched by the bottom case. PowerBook G4 (DVI) Inverter Board - 2

60 4. Install the replacement inverter board onto the optical drive. 5. Reassemble and test the computer. Important: Make sure the bottom case is installed correctly. If the slot-load area is slightly bowed, carefully pull the bottom edge of the slot until it clicks into place and becomes flush with the bottom case. Important: Check the operation of the optical drive. If the drive is installed incorrectly, the optical drive mechanism might not spin correctly and will result in mechanical noise when playing a disc. PowerBook G4 (DVI) Inverter Board - 3

62 Procedure 1. With the display open and the keyboard removed, locate and remove the EMI clip that secures the optical drive s flex cable to the rib frame. Side until reassembling the computer. Replacement Note: When reassembling the computer, ensure that the EMI clip captures the tab on the flex cable and holds it against the rib frame. 2. Remove the bottom case. Important: With the bottom case removed, be careful if turning over the computer. Some components could become loose and fall out. 3. Remove the two T8 screws that secure the hard drive mounting bracket and remove the bracket. PowerBook G4 (DVI) Modem - 2

63 4. Disconnect the inverter board flex cable from the inverter board and logic board. 5. Disconnect the optical drive and modem flex cables from the logic board. 6. Remove the two T6 screws that secure the modem. 7. Lift up the end of the modem slightly and disconnect the 2-pin cable connector. PowerBook G4 (DVI) Modem - 3

64 8. Use a thin tool to lift the optical drive slightly, then deroute the modem flex cable. 9. If the modem flex cable is not damaged, remove it and transfer it to the replacement modem. 10. Install the replacement modem. Avoid putting pressure on or stressing the modem board during installation. 11. To replace the optical drive, carefully guide the rubber stoppers on the outer side of the drive past the edge of the computer case. Warning: To prevent damage to the optical drive, handle the drive only by the corners. Do not press on the body of the drive. Important: When the rubber stoppers are inserted, push down on all four corners of the drive to verify that the drive is level and secure. PowerBook G4 (DVI) Modem - 4

65 12. Reassemble and test the computer. Replacement Note: When reinstalling the optical drive, ensure that the bulb wire cable is safely within the case edge so that it will not get pinched by the bottom case. Important: Make sure the bottom case is installed correctly. If the slot-load area is slightly bowed, carefully pull the bottom edge of the slot until it clicks into place and becomes flush with the bottom case. Important: Check the operation of the optical drive. If the drive is installed incorrectly, the optical drive mechanism might not spin correctly and will result in mechanical noise when playing a disc. PowerBook G4 (DVI) Modem - 5

67 Procedure 1. With the display open and the keyboard removed, locate and remove the EMI clip that secures the optical drive s flex cable to the rib frame. Set it aside for installation of the replacement drive. Replacement Note: When installing the replacement drive, ensure that the EMI clip captures the tab on the flex cable and holds it against the rib frame. 2. Remove the bottom case. Important: With the bottom case removed, be careful if turning over the computer. Some components could become loose and fall out. PowerBook G4 (DVI) Combination DVD-ROM/CD-RW Optical Drive - 2

69 6. Disconnect the bulb wire cable from the inverter board. 7. Remove the four T6 screws that secure the modem and the inverter board and remove the inverter board. Replacement Note: When reinstalling the replacement optical drive, ensure that the bulb wire cable is safely within the case edge so that it will not get pinched by the bottom case. 8. Lift up the end of the modem slightly and disconnect the 2-pin cable connector. PowerBook G4 (DVI) Combination DVD-ROM/CD-RW Optical Drive - 4

70 9. Use a thin tool to lift the optical drive slightly, then deroute the modem flex cable. 10. Warning: To prevent damage to the optical drive, handle the drive only by the corners. Do not press on the body of the drive. To remove the optical drive, pull the drive to the right, away from the hard drive, to release the long rubber stopper from the rib frame. 11. Important: If you notice that the felt strip for the slot-load area is torn or damaged, replace the felt strip with a new one before replacing the optical drive. Follow the instructions below to replace the felt strip: Locate the felt strip that came with the replacement drive. Before you remove the old felt strip, note the alignment of the felt strip over the slot-load area in the inner top case. PowerBook G4 (DVI) Combination DVD-ROM/CD-RW Optical Drive - 5

71 Peel off the felt strip from the inner top case. If there is any residual adhesive on the top case, rub it away. Apply the new felt strip to the slot-load area. Make sure the new felt strip lies flat. Use a black stick to run the length of the slot to make sure that the felt strip does not block any of the slot. 12. Install the modem and inverter board onto the replacement optical drive. Again, handle the optical drive only by the corners. Do not press on the body of the drive. 13. To install the replacement optical drive, first insert the longer stopper on the inner side of the drive into the opening on the rib frame. Ensure that the other inner stopper rests securely in its space on the frame. Then while holding the inner side of the drive in place, carefully guide the rubber stoppers on the outer side of the drive past the edge of the computer case. Important: When the rubber stoppers are inserted, push down on all four corners of the drive to verify that the drive is level and secure. PowerBook G4 (DVI) Combination DVD-ROM/CD-RW Optical Drive - 6

72 14. Reassemble and test the computer. Important: Make sure the bottom case is installed correctly. If the slot-load area is slightly bowed, carefully pull the bottom edge of the slot until it clicks into place and becomes flush with the bottom case. Important: Check the operation of the optical drive. If the drive is installed incorrectly, the optical drive mechanism might not spin correctly and will result in mechanical noise when playing a disc. PowerBook G4 (DVI) Combination DVD-ROM/CD-RW Optical Drive - 7

74 Procedure 1. Disconnect the backup battery cable from the backup battery. Note: If the cable connector gets caught on the ridged area of the top case, use a black stick to raise up the backup battery and then disconnect the cable. 2. Note: The backup battery is compressed between two thin plastic sheets. The battery is held in place with adhesive on the lower plastic sheet. Slide a black stick under and along the edge of the backup battery. Pry up the backup battery so that the entire battery including the lower plastic sheet is removed from the inner top case. Warning: The ridged area of the top case is sharp. PowerBook G4 (DVI) Backup Battery - 2

75 3. If there is any adhesive left on the surface of the inner top case, use a black stick to rub it away. Do not use solvents. Note: When installing the replacement backup battery, make sure the inner top case is clean and free of debris. 4. Peel off the cover sheet from the bottom surface of the replacement backup battery to expose the adhesive. 5. When positioning the replacement backup battery on the inner top case, make sure the battery fits within the ridged battery area of the inner top case. 6. Install the replacement backup battery, and reassemble and test the computer. PowerBook G4 (DVI) Backup Battery - 3

77 Procedure 1. With the display open and the keyboard removed, remove the T8 screw near the heat pipe. 2. Disconnect the PC card flex cable connector and the keyed battery connector. Important: If the battery connector has not been disconnected before, the keyed connector may be tight. If necessary, use a black stick or needle nose pliers to loosen one side of the connector and then the other side. Then insert the black stick under the cables to pry up and disconnect the connector. Replacement Note: When reassembling the computer, tuck down the battery cables so they do not get in the way when the keyboard is installed. PowerBook G4 (DVI) Logic Board - 2

78 3. Disconnect the 3-pin backup battery connector from the logic board. 4. Remove the bottom case. Important: With the bottom case removed, be careful when turning over the computer. Some components could become loose and fall out. PowerBook G4 (DVI) Logic Board - 3

79 5. Warning: The thin cables connected to the LVDS (low voltage data signal) connector are extremely delicate. Do not pull or pinch the LVDS cables. Be especially careful when working near cables that attach to the display. If any of these cables are damaged, the entire display module must be replaced. At the left side of the logic board, disconnect the 2-pin sleep LED cable connector, the LVDS connector, and the 6-pin audio connector. 6. At the right side of the logic board, disconnect the 2-pin power button cable connector, the DC-in board cable connector, and the inverter board and modem flex cable connectors. PowerBook G4 (DVI) Logic Board - 4

81 10. Remove the five identical (bronze colored) T8 screws. Note: When reassembling the computer, do not overtighten the screws. 11. Grasp the logic board near the AirPort Card carrier and gently lift the board up and out, as shown below, being careful where it catches on ports, back panel mesh liner, and disconnected cables. If necessary, open the panel door and press on the ports to free the logic board from the back panel. Important: If a secondary fan is installed, lift the board just enough to access and disconnect the fan s connector on the logic board before removing the board. PowerBook G4 (DVI) Logic Board - 6

82 Replacement Note: When reassembling the computer, make sure the replacement logic board ports align completely with the openings in the back panel. Replacement Note: When positioning the replacement logic board into the computer, check that cables and connectors do not get caught under the board. Tilt the logic board toward the back panel, and place the following cables into the notches in the board: Power switch cable (reapply tape over the cable, if applicable) Sleep LED cable LVDS cable Audio cable 12. Remove existing memory cards from the logic board for installation on the replacement logic board. Carefully spread the end brackets to allow the card to raise up, then pull out. PowerBook G4 (DVI) Logic Board - 7

84 Rectangular plastic standoff around the agere chip Important: If transferring from the old board, use a razor knife to remove. Be very careful not to damage board components. Warning: Verify that the standoff installs flat and does not get caught or raised up on the perimeter edge of the chip. Plastic 1 mm and 1.5 mm washers around the screw holes, shown. Center and press into place. PowerBook G4 (DVI) Logic Board - 9

86 15. Check that the heat exchanger has three rectangular thermal interface pads in place. If the pads are missing or damaged, replace the heat exchanger. 16. Use a razor blade or black stick to gently scrape away any residual thermal transfer material on the heat exchanger on the surface that mates with the microprocessor. PowerBook G4 (DVI) Logic Board - 11

87 17. Important: If you have removed the logic board to access another part, and you will be placing the original logic board back in the computer, use a black stick to gently scrape away any residual thermal transfer material from the microprocessor chip on the logic board. Warning: When scraping away the thermal transfer material from the microprocessor chip, be careful not to nick the microprocessor chip. 18. On the replacement logic board, center new thermal transfer material over the epoxy cap on the microprocessor chip. Press it into place. Note: The thermal material pads break easily. Use care when removing the pad from its packaging and when handling, to avoid damage. Important: Do not install thermal material on the logic board chip if replacing the heat exchanger and thermal material is already installed on the chip mating surface. PowerBook G4 (DVI) Logic Board - 12

88 19. If included with the logic board, remove the new Ethernet ID label (possibly on the static bag or on the board s memory card bracket), peel off the adhesive protector and attach the label, right side up, over the Ethernet ID and bar code on the ID plate inside the battery well. 20. Install the replacement logic board, and reassemble and test the computer. Replacement Note: When replacing the logic board, the RJ-11 cable and backup battery wire connectors must be routed, as shown below, so that they do not interfere with the logic board replacement and can later be accessed through the keyboard opening. Ensure that optical drive s flex cable has not been pulled out of the EMI clip, and that the clip still secures the tab on the flex cable to the rib frame. PowerBook G4 (DVI) Logic Board - 13

91 Procedure 1. With the logic board removed from the computer, disconnect the fan connector from the logic board. 2. Turn over the logic board, and locate the cone-shaped pin at the right corner of the fan. Pull the rubber pin tight. Use a razor blade to cut through the rubber pin. PowerBook G4 (DVI) Primary Fan - 2

92 3. Turn over the logic board, and tilt up the fan to remove it completely from the logic board. Note: The fan is secured to the logic board by a spongy, rubber adhesive lining on three sides of the bottom of the fan. If there is any adhesive stuck to the surface of the logic board, remove it by rubbing it away. Do not use solvents. 4. When installing the replacement fan, first use a black stick to push the cone-shaped rubber pin into the hole on the logic board. (If necessary, use needle nose pliers to pull the rubber pin through to the other side of the logic board.) Then, peel away the protective cover from the adhesive that lines the three sides of the fan. Align the fan over the logic board opening and press the fan into place. Important: Do not press on the center hub of the fan. Press only on the outside edges of the fan housing. Note: If the cone-shaped rubber pin is too long, use a razor blade to cut the extra length. 5. With the replacement fan installed securely, and the fan connector connected to the logic board, reassemble and test the computer. PowerBook G4 (DVI) Primary Fan - 3

96 Procedure 1. Remove the two screws that attach the PC card cage to the rib frame. (The longer screw is next to the battery connector.) 2. To remove the 4 mm hex nut that secures the PC card cage to the heat exchanger, you may want to use a finger to support the 5 mm (magnetic) hex screw underneath the nut to prevent the screw from falling out of the screw hole. Loosen and remove the hex nut. Remove the PC card cage, being careful where it can catch on the PC card eject button. Then, reattach the hex nut temporarily to the hex screw. PowerBook G4 (DVI) PC Card Cage - 2

97 3. Check that the replacement PC card cage includes a clear plastic shim on the outer frame near the PC card eject button. If the shim is not there, transfer the shim from the old PC card cage to the replacement PC card cage. 4. When installing the replacement PC card cage, ensure that the metal flange that is closest to the PC card eject button goes underneath the rib frame and metal liner at the battery latch. 5. Install the replacement PC card cage, and reassemble and test the computer. PowerBook G4 (DVI) PC Card Cage - 3

99 Procedure 1. With the display open and the keyboard removed, remove the five identical T8 screws from the top case. 2. Remove the items listed in Preliminary Steps, to be removed in step 2. Important: With the bottom case removed, be careful when turning over the computer. Some components could become loose and fall out. 3. Open the I/O door, and remove the four identical T6 screws. 4. Lift out the two back panel mounts from the notches in the rib frame. PowerBook G4 (DVI) Rib Frame and Heat Exchanger - 2

100 5. Close the computer to an approximate 45-degree angle, and stand it on a soft cloth with the clutch covers facing up. 6. Remove the four identical T8 screws from the clutch covers (two screws on each clutch cover). 7. Use a black stick to pry off the two clutch covers. Note: Opening the display slightly may help to remove the covers. PowerBook G4 (DVI) Rib Frame and Heat Exchanger - 3

101 8. Open the computer so that the display rests in your lap and is protected by a soft cloth. 9. Warning: Be especially careful when working near cables that attach to the display. If any of these cables are damaged, the entire display module must be replaced. Warning: At the left clutch, the wrapped cable connected to the LVDS (low voltage data signal) connector is extremely delicate. Do not pull or pinch the LVDS cable. Do not allow the screwdriver to touch the LVDS cable. Locate the two large silver-colored screws. Gently move aside the LVDS cable so you can access the screws. Remove the two silver-colored T8 screws from the left clutch. Notice that the screw closest to the LVDS cable has a sloped screw head. (Do not remove the smaller screws.) Important: When installing the replacement display, make sure the screw closest to the LVDS cable is the screw with the sloped head. PowerBook G4 (DVI) Rib Frame and Heat Exchanger - 4

102 10. At the right clutch, note the routing of the inverter cable. Without straining the inverter cable, gently move it aside so you can access the two large silver-colored screws. 11. Support the display as you remove the two identical, large, silver-colored T8 screws from the right clutch. (Do not remove the smaller screws.) 12. Important: With the display hinge disconnected, support the display as you place it face-down on a soft cloth in front of the computer chassis. Warning: Do not separate the display cables from the computer chassis. Do not strain the cables. PowerBook G4 (DVI) Rib Frame and Heat Exchanger - 5

103 13. Remove the four identical black T8 screws from the rib frame. (You might need to move aside the AirPort antenna cable to reach one of the screws.) 14. Lift the rib frame off of the heat exchanger. If the heat exchanger sticks to the rib frame, press gently on the heat exchanger near the two connection points shown.. PowerBook G4 (DVI) Rib Frame and Heat Exchanger - 6

104 15. Disconnect the audio cable at each end of the heat exchanger. PowerBook G4 (DVI) Rib Frame and Heat Exchanger - 7

105 16. Pivot the heat exchanger out of the top case assembly. Be careful where it might catch at the LVDS cable. Warning: At the left clutch, the wrapped cable connected to the LVDS connector is extremely delicate. Do not pull or pinch the LVDS cable. Warning: Do not bend the heat pipe. PowerBook G4 (DVI) Rib Frame and Heat Exchanger - 8

106 17. If replacing the rib frame but reusing the heat exchanger, scrape off the thermal transfer material residue from the area shown. Apply new thermal transfer material to the logic board chip. Replacement Notes: If replacing the heat exchanger, transfer the hex nut and screw to the replacement heat exchanger. When replacing the heat exchanger, check that the audio cable is routed as shown. If replacing the rib frame, transfer the battery connector to the replacement rib frame, if needed. Ensure that a modem filter board cable is attached to the replacement rib frame; if not, transfer the cable. The cable should route as shown below. Check that the EMI clip for the optical drive s flex cable has been removed for transfer to the replacement rib frame. 18. Install the replacement rib frame and/or heat exchanger, and reassemble and test the computer. PowerBook G4 (DVI) Rib Frame and Heat Exchanger - 9

108 Procedure Important: With the bottom case removed, be careful if turning over the computer. Some components could become loose and fall out. Note: Remove any kapton tape as needed and replace during reassembly. 1. Remove the black T8 screw holding the right side of the rib frame and disconnect the bulb wire cable connector. 2. Pull up slightly on the rib frame then deroute the bulb wire cable. Replacement Note: Route the replacement cable as shown. Use a black stick to tuck the cable in over the backup battery cable between the speaker and top case. Replacement Note: After reconnecting the bulb wire, ensure that the bulb wire cable is safely tucked within the case edge so that it will not get pinched by the bottom case. PowerBook G4 (DVI) Bulb Wire Cable - 2

109 3. Reassemble and test the computer. Important: Make sure the bottom case is installed correctly. If the slot-load area is slightly bowed, carefully pull the bottom edge of the slot until it clicks into place and becomes flush with the bottom case. Important: Check the operation of the optical drive. If the drive is installed incorrectly, the optical drive mechanism might not spin correctly and will result in mechanical noise when playing a disc. PowerBook G4 (DVI) Bulb Wire Cable - 3

111 Procedure 1. Using needle nose pliers, pull off the rubber plugs at each end of the door. Remove the springs, and set aside the plugs and springs. Important: Be very careful not to damage or bend the heat exchanger pipes. 2. Pull the door away from the top case. 3. Remove the L-shaped pin from each end of the I/O door. Note: The L-shaped pin has a knob at one end. The knobbed end holds the rubber plug onto the L-shaped pin. 4. Install the replacement I/O door. Make sure each L-shaped pin threads through the top case, inner clutch mount, spring, and plug. Note: You might need to use a black stick to compress the spring while installing the plug on each L-shaped pin. 5. Reassemble and test the computer. PowerBook G4 (DVI) I/O Door - 2

112 apple PowerBook G4 (DVI) Display Module Replacement Instructions The following instructions explain how to replace the display module on the PowerBook G4 (DVI) computer. Warning: Make sure you carefully follow these instructions, especially when working near cables that attach to the replacement display module. If any of the cables are damaged, the entire display module must be replaced. Tools Soft cloth Black stick (nylon probe tool ) or other ESD-safe, non-marring tool Preliminary Steps Before you begin, remove the following: Battery DC-In Board Rib frame and heat exchanger 2002 Apple Computer, Inc. All rights reserved. Updated:

113 Procedure 1. With the rib frame and heat exchanger removed, make sure The display is supported on a soft cloth in front of the top case The display cables are not strained Warning: Be especially careful when working near cables that attach to the display. If any of these cables are damaged, the entire display module must be replaced. The LVDS cable and connector are extremely delicate. Do not pull or pinch the LVDS cable or connector. If necessary, use a black stick or other nonconductive tool to guide the cables out of the top case. 2. Raise the inner clutch mount so it is pivoted away from the LVDS cable and sleep LED cable. PowerBook G4 (DVI) Display Module - 2

114 3. Thread the 2-pin LED sleep cable through the opening in the top case. Carefully guide the LVDS cable through the opening by looping the cable and turning the LVDS connector sideways, as shown, to fit through the opening. 4. At the right clutch, raise the inner clutch mount and disconnect the inverter cable. Carefully slide the inverter cable out through the opening in the top case. 5. The display module includes all three cables. PowerBook G4 (DVI) Display Module - 3

115 6. Important: When the replacement display module is installed, and before the clutch covers are installed, test that the display is seated properly. With the computer upright and closed, press the computer latch. The display module should pop up slightly if the module is properly seated. 7. Install the replacement display module, and reassemble and test the computer. PowerBook G4 (DVI) Display Module - 4

117 Procedure 1. With the preliminary steps completed, compare the original top case to the replacement top case. 2. Before installing the replacement top case, make sure it includes the following: Speaker set and cables Power button and board (heatstaked to top case) AirPort antenna cable Trackpad assembly with board and cable 3. Important: Make sure you transfer the original serial number label from the old top case to the serial number panel on the replacement top case. You can use a black stick or razor blade to carefully peel up a corner of the label. Then peel off the label completely and apply it to the serial number panel. Make sure that the label lies completely flat so it does not interfere with the battery compartment. PowerBook G4 (DVI) Top Case - 2

118 4. Confirm that the thermal strip and mesh liners are installed at the back panel. 5. Important: Make sure you transfer the backup battery cable from the original top case to the replacement top case. The backup battery cable is tucked below the bulb wire cable along and between the speaker and top case, as shown. 6. Install the replacement top case, and reassemble and test the computer. PowerBook G4 (DVI) Top Case - 3

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